* lisp/emacs-lisp/autoload.el (autoload-generate-file-autoloads):

`newline' does not respect `standard-output', so use `princ'.

Otherwise you can get \n inserted in the wrong buffer, eg
http://lists.gnu.org/archive/html/emacs-diffs/2013-10/msg00379.html

lisp/ChangeLog

@@ -1,3 +1,8 @@
+2013-10-30  Glenn Morris  <rgm@gnu.org>
+
+	* emacs-lisp/autoload.el (autoload-generate-file-autoloads):
+	`newline' does not respect `standard-output', so use `princ'.
+
 2013-10-30  Alp Aker  <alp.tekin.aker@gmail.com>
 
 	Ensure unmarking in buffer menu clears 'S' marks.  (Bug#15761)

lisp/emacs-lisp/autoload.el

@@ -553,7 +553,7 @@ Return non-nil if and only if FILE adds no autoloads to OUTFILE
                           (princ `(push (purecopy
                                              ',(cons (intern package) version))
                                         package--builtin-versions))
-                         (newline)))))
+			  (princ "\n")))))
 
               (goto-char (point-min))
               (while (not (eobp))